Finding the Fourth Proportional to 379,470.37, 523,679.94 and 207,397.90
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Solution
The fourth proportional to 379,470.37, 523,679.94 and 207,397.90 is: 286,215.02
Step by Step Solution
- Step 1: Write the proportion equation
379,470.37 : 523,679.94 = 207,397.90 : x - Step 2: Convert to fraction form
379,470.37/523,679.94 = 207,397.90/x - Step 3: Cross multiply
379,470.37x = 523,679.94 × 207,397.90 - Step 4: Simplify right side
379,470.37x = 108,610,119,828.13 - Step 5: Solve for x
x = 108,610,119,828.13/379,470.37 - Step 6: Final answer
x = 286,215.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.